Lawrence Dominic McCarthy was born in
York, Western Australia, on 21 January 1892. The son of Florence McCarthy of Cork, Ireland, and his wife Anne (née Sherry), he was
orphaned at a young age and was brought up at
St Joseph's Boys' Orphanage (later Clontarf) in
Perth and educated in Catholic schools. After completing his schooling, from the age of 13 he worked on a farm as an apprentice at Jennacubbine, near
Northam. Later, he served with the 18th Light Horse, a
Militia unit, for two and a half years before moving to
Lion Mill, Perth. He subsequently worked as a contractor sawmiller, losing three fingers on his left hand in an accident. ==First World War==